Functioning as a tunable high-pass filter, the ATEK890P4 is optimized for operations in the 1 GHz to 1.95 GHz range. It showcases a tight insertion loss of 2 dB and a rejection of 55 dBc, ensuring clear and selective high-frequency signal passage. This filter is particularly advantageous for systems that demand rigorous high-pass filtering and performance stability in a 4x4 mm QFN format.